E9
Rosières
Heater Relay / Control Board Heating Control Error
E9 appears; dishwasher may stop shortly after starting or during heating phase
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Stuck or burnt heater relay on PCB, Dry solder joints on control board, Shorted heater drawing excessive current, Control board failure
How to Fix / Troubleshooting
Safety first: Disconnect mains power. Electronic board work should only be done by qualified persons.
- Confirm heater function: If the dishwasher does not heat and E9 is displayed, suspect the control board or heater circuit.
- Inspect wiring: Check the harness from the control board to the heater for signs of overheating or damage.
- Access control board: Remove the inner door panel to reach the main PCB. Look for burnt areas, swollen components, or a charred relay.
- Do not bypass safety devices: Never bridge relays or fuses to "test" heating; this is dangerous.
- Replace faulty parts: If the heater tests good but the relay or PCB is damaged, replace the complete control board with the correct Rosières module. This repair is best handled by an authorized service technician.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (PCB)
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements